How do you know when to add numbers? what is the sign rule

There is only one copy machine at your office. you have to make 1000 copies of an expense report. after you begin copying, two other employees show up in the copy room. each has to make only 10 copies each. what is the proper etiquette in this situation?

About how many individuals in the us go bankrupt each year due to medical bills?

What should i do when a baby has gas at night?